diff --git a/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/tg_owt.nix b/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/tg_owt.nix
index 070ae2f8c5f8..aff74a174b9c 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/tg_owt.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/tg_owt.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchFromGitHub, pkg-config, cmake, ninja, yasm
-, libjpeg, openssl, libopus, ffmpeg_$, alsa-lib, libpulseaudio, protobuf
+, libjpeg, openssl, libopus, ffmpeg_4, alsa-lib, libpulseaudio, protobuf
 , xorg, libXtst
 }: